Permutation padlock



Oct. 9, 1928.

G. F. MAYER PERMUTATION PADLOCK Filed Feb. 14, 1927 Patented Get. 9, 1928.

EATENT Gefrier.

esoneri n. Merian, or" CHICAGO, ILLINOIS.

.Appleationled 4February 14, 19.27. Serial No. 167,885.

Myinvention relates to permutation padlocks and has particular reference to a padlock .which is easily operable and ,in which ready access is lhad to the tumblers so that g tlie 'combination of the padlock can' be very ealyr and' quickly changed. l 1 "otlie r and" further object of my inven- .tionl isfthe' prevision of a padlock having a plurality' of :locking ytumbl'e'rs therein which, `1 9 when placed in' 4one position, perform the 'func'tdirof loc-king'tumblers land- When in reversed positiona'r'e free of theflocking bolt and'do not.'Iierform a ,lockinglfunction when thel padlock is'lsu'spended from the bow, thus -15 .enabling the omission of a good-number of these lockin tuinblers and' making the unlocking of tie padlock a more simple operation ,thanmight be possible otherwise.

Anotherand further object of my invensu tion is the provision of a padloc'khaving a plurality of locking tumblers therein which is 'adapted Atoremjain 4securely locked and which'is not easily lpicked or unlocked, thus securing ar larger measure of safety than what l has beenpossilole with locks of thischaracter heretofore. I

Jinother and further object of my invention is the provision of a padlock having the tumblers soarranged that when the I.lock

:3u is suspended fro'rna stap-le the locking tumblers are in locked position and if reversed the locking tumbler-s are apt to slide into unlocked positien'but the free tumblers-Will thereupon slide into such position that the g5 bolt is held in locked relation.

` Another andfurther object of my .invention is the provision of a padlock having a 'spring-pressed Imaster tumbler therein and `in which, in unlocking the device, it is neces- .:e .sary to opy rate 'the master tumbler last, thus releasing the locking bolt.

'These ,and other objects of my invention will bemore fully and better understood by reference to the accompanying drawings in 4:, which Figure 1 is a side elevational View of my improved lock.;

Figure 2 is an end elevational view of the l oc'k vshown in Figure 1 Figure 3 is a side view of the casing with the cover plate removed;

` 'Figures is across sectional view of the loekon lines 4-4 `of Figure '3;

Figure 5 is 'a cross sectional view through ,es the loclrcasing en lines 5-A5 of Figure 3;

Figure 6 is a detailed cross sectional view i on lines G-6 of Figure 3; and

Yfigure 7 is a side elevational Viewv of the master tumbler.

Referring now specifically to the drawings and in which like reference characters' refer to like parts throughout, a casing 10is shown which is preferably cast integral with one open side and which is rectangular in shape, with a hollow space inside for receiving the various parts and mechanisms hereinafter described, and which has a side coverfplate A'11 secured thereto and held in position bfy Ymeans ol the locking bolt, as will be more fully described hereinafter. A lbow 12 is providedx the free ends of which extend into holes drilled into the casing 10 in a vertical direction and wl'iich is adapted to pass through a staple or other locking members when the device is in operation. A locking bar 13 is previded which is fit-ted into the casing 10 'and extends transversely across the inside thereof and `is held in position by a member 121 having its ends angularly turned and placed into frictional engagement with ,the slides of the flocking bar 13, and with a pair of spacers 15 and 1.6 at the opposite sides of the lockingba-r 13, which are held -to the casing in any suitable manner, as by screws or the like. 85

The locking bar 13 has an opening 117 =ex ,tending Alongitudinally thereof within which a locking bolt 18 ,is positioned,the said locking bolt having a plurality of recesses 19, 19 in the upper face thereof which extend approximately one-half the distance across the said locking Vbolt 18 thereby providing a plurality of ribs 20, 2() on said locking bolt-between the said recesses 19. The locking bar 13 has a plurality ,of slots 21, 21'f0rmed therein, these 'slots extending downward through the bar 13 to t'lie'bottom of the recesses 19 formed in 'the 'locking 'bolt 18, thereby forming a plura'lity of spaced portions 22, 22 on the upper sideof the locking bar 18. A plurality of sliding locking tumblers 23, 23 are provided which are rectangular in shape and have a pair of downwardly extending legs 24 and 25 Von .each side thereof adapted to extend downvforce .isjapplied to the outer endsof thel memybers 27, the tumolers are moved -mone y,direction only by ,tlieloperator ofthe ilock. flfhe,recess ,25 inthe tumbiers 231s cut at one sideg'ofthe tumblers 23,:1hat is, theidistance lfr'onrthe, ed/Je of therecesstoA theI lel 25'is les than the distance from 'the oppositelside of the recess `to the legQfl-,l Whenthe tumbler-s 23am 'placedrin the lock as shown in Figure f1, :andthe leg Qlisv abuttingagainst thelockbarvlS, the Itumblersare in locked, position, that'is, the edge of the .tumblers extends .into-,the recesses 19 formedin the lockingbolt .18andbetween the-ribsfQO, 20, thus preventingflongitudinal movement of the said .lockingbolt. Willen the tumblers 23 are reversed so thatl ythe leg .25 is abuttingagainst the up` per side of thememberl, the recess 23 is in register .with thelocking bolt 18so that ,the locking bolt 18 is lfree to move longitudinally. The short side of the tumblers `isindicated by being marked in some manner, as shown on the drawings which arelined to indicatethe colorblaclr, so that insetting the Ifclon'ibination for these ytumblers if it is desired to utilize certain tumblers or arrange certain combinations, the end of the tumbler-s which is marked in black ,is positioned adjacent .the

operatingstuds 2 7 -and when ,it is :desired :to :release the locking bolt18, it is necessary .only to release. these tumblers by pushing .inwarden thecperating .members 27 with a `nail,pencih `or any other. operating means which will tit into the casing againstrthe ends of lthe operatingr members 27, the Casing in the'meantime being held in a horizontal positionso the tumblers so moved will not slide bacliiinto their original positions, or the other tuinblcrs slide towards the bow side of the lock` casing. rfhelowerside of the lock casgin'glihas a plurality of holes 80, 30 v therethrough, .eachone these holes having a numeral adjacent thereto which form indicating ,means forl the operating .plungers 27, theendsof the plungers projecting into the holes 3G as shown. As shown in the drawing, the combination for operating the loclr'is set at. 1,3, v5,7 and 9 and it will be noted that the black ends of the tumblers are opposite these openings.. y

The locking bolt 18 has a head. 31 on the outer end thereof and sets inarecess 32 formed on ithe outer side of the casing within which aspring 33is mounted, one end of which abuts against t-he head 31 on the locking bolt 18 and the opposite end engages against the casing, the locking bolt passing through an openthelower side of the casing has a pair of re` I cesses 88 and formed therein for the pur- .posey of allowing a pair of studs 40 and l1 whichare secured to the cover plate 11 to be ,inserted downwardly through holes formed in,thejlocking.member 13, these studs 104 and l1 havingrecesses in the sides thereof (Fig. l(i),withinywhich the locking bolt 18 is rereived aswill be more fully described herein.H a,jle1jthe studs 10 and L.t1 ittinginto recesses :in the locking bolt 18 for the purposeof holding the cover plate 11 in position. A pin 12 isinserted through the locking member 13 and'serves to cooperate'with the recess L13 formed in one side ofthe locking bolt 18, by ,means of which the distance of longitudinal travel of the lockingbolt 18 is controlled.

v i he bow 12 of the padlock is formed in the usual manner of bows of this character, one end Iof. the bow being longer than the other, the,I ends of the bow being received in vertical openings 111- and 45 formed in the loclrcasing. The bow at one end thereof is recessed at 16 having a flat portion formed ,thereby with a head 17 being formed thereon and which is normally adapted to engage the free end of the locking boit 18 when the padlock is in locked position. A recess 18 is formed in the side of the bow 12 which com- ,municates with the recess 1G on one side thereof and .which receives a v pin 49 inserted .through the lock casing and prevents the 'complete withdrawal of the bow 12 from the locl :casing 10, the pin 19 being loosely positioned in they casing and adapt-ed to be removed .therefrom when the cover plate 11 is removed from the casing 10, the pin 49 being received into the recess L18 when the bow is in its farthermost outward position as the bow is rotated to allow for easy fastening of the bow in a staple or the like.

A,A master tumbler 5() is illustrated in Figure 7 and shcwn in position also in Figure 3, .this tumbler being formed' in the same manner except that it is made longer on one side and adapted to cooperate with a transversely extending iiat spring 51 positioned in themembers land 16 and extending transversely across the lock casing, this spring being spaced far enough from the other tumbler-s not to interfere with their operation and is adapted to hold the master tumbler 5() in con 'asse-esa starrt-locked" relation until relieved iromthis positionv byJ pressiir'e Ont-heoperati'ng member 27opposite this' tumbler. y The spring is nori'rrall'y'*compressedl when the tumbler is in 'ldckedpos'it'iorrand during the" unlocking opvtumbler in 'unlocked position during this operation, whereas by placing the casing in V"a"l'rorizo'ntal position-all of the other tuinblers may be placed in unlocked position merely bypushiiig'th em into `this position where they 'will remain.

In operation the device is quite simple' in "lia'tthe tumbler's, if arranged in the form shown inl the drawing and it is desired to place the padlock in locked posi-tion, the bow lf2 isiiiserte'd through the sta-ple or other Icking' member" and is turned so one en'd thereof'is inserted into the' open-ing and the bow pushed into tliejpadloe'kcasing as far as possible; The' operator thereupon presses inwardl'y zrfiainst-thehead oit'hfe locking bolt 1S pusliingi't inward so'y the' inner end' thereotl e'X-ten'ds over the shoulder l? formed on the bow' 12,A the pa'dlockis: placed' in vertical positio'n where'i'pon thelocking tumblers will. drop? into 'the position shown in* Figure Il, thus reventi-nsT the' withd'rawal'ot thelocking bolt lfSf ainjdV holding the padlock in' locked relation.

Zhen it is desired to-unlock the device it the master tumbler is not us'ed', the'padlo'ck-- is placed in a horizontalposition and the lockingi tni'nblers are piislied across the locking bolt by means of the operating members 2T and as soon as they are all in this position the spring 33 throws the locking bolt outward so the inner end thereof is beyond the head ai' allowing the bow to be withdrawn so that the opposite end of the bow is clear ot the lock casing, allowing it to be removed from the staple or hasp, and the device unlocked. IVhen in unlocked position the locking bolt 18 may be pushed tar into the easing so the recesses 38 and 39 are in register with the studs l() and 41, the inner end ol the locking bolt 18 passing underneath the head 117 on the bow 12. When in this position the cover 11 can be easily removed by being liited from the casing 10 and access had to the inside ot the lock where the tumblers may be changed in anv manner desired so that the combination oit the operating tumblers may be changed by merely reversing the position of the locking tumblers Q3, it only being necessary to bear in mind that the locking tumblers having the marked sides should be adjacent the operating members 2T.

Should it be desired for any reason to disassemble tl'ie entire lock when the cover plate 11 is removed the pin r2 can be removed, thus removiirg the locking bolt 18' and the )int9 can also' be removed so that the bow 12 can be easily taken from the casing 10. In reassembling the" device the b'ow is placed inpositioinY the pin 49 dropped into' place so the bow is held in proper position and after the locking bo'lt18 is inserted in the lock member,

the pin i2 is thereupon placed in position. and

pushed into'the casing a suiiicient distance so the recesses 38 andv 39 are in alignment with the' pin openings through the locking member 13, whereupon the cover plate 11 is placed into position and the locking bolt 18 allowed to return to its normal unlocked position in which position the locking bolt engages in the recesses formed in the sides' of. the pins 40 and del. thus holding the cover pla-te 11 firmly inv position and preventing the-removal of this plate tor the purpose of tampering with thelock. It will be understood that when the bow is in locked position the inner end ol' the lock-ing bolt 18 abutting against the side of the bow adjacent the recess i6 prevents the locking bolt 18 being pushed in :tar enough for the removal' of the plate 11 and that this plate can only be removed when the lock is in unlocked position.

If it is desired to use the master tumbler illustrated in Figure 5, thisV tumbler is insertedl in the place of any one of the tumblers 23 'that may e desired,` and its position borne in mind vby the operator of the lock so that when' it is desired to' unlock the4 device this tumbler isI operated as the last one in the series-,i whereupon' the locking bolt 118 will be tlrown into unlocked position bythe spring 8 l Thilo I have described more or' less precisely the details of construction, I do not wish to be understood as limiting myself thereto, as I contemplate changes in 'form and the proportion ot parts and the substitution ot equivalents circumstances may suggest or render expedient without departing from the spirit or scope of my invention.

I claim:

1. it permutation padlock comprising in combination. a. easing, a. bow, a locking member having a longitudinal opening therein, a locking bolt mounted in the opening in said locking member, and a plurality of sliding locking tumblers mounted upon said locking member adapted to engage the locking bolt when in locked. position. said locking tumblers having recesses on their under sides adapted when in unlocked position to register with the longitudinal opening in said locking member and out of engagement with the lockingl bolt. i

2. A permutation padlock comprising in combination. a casing. a bow, a locking meinber, said locking member having a longitudinal opening therein and a plurality of spaced ribs thereon, a locking bolt having a plurality or' ribs thereon, and a pluralityof tumblers lmounted between'the ribs on said looking ya-blypositioned upon lsaid looking member.

3.. permutation padlock comprising in combination, a casing, a bow, a loeiring member havinga longitudn'ial ,opening therein anda plurality of spaced ribs thereon, a loeking bolt slidably Amounted inthe opening in ysaid looking member having a plurality of rribs thereon, a plurality of transversely extending slidably mounted locking tumblers in 'Said locking member having recesses in their under sides thereofA adapted 'to register with Ithe openings in the looking bolt when in unloekedvposition and ont of registertherewith when in looked position and in engagement with the said. locking' bolt. f

1. A .permutation padlock Comprising in combination, a easing, a bow, a looking member in said easing-'having a longitudinal opening,r therein, and a pluralityot` ribs formed thereon, the said ribs extending` approximately one-haltl the depth ofthe said looking member, a locking bolt slidably mounted in the longitudinal opening'in said locking member having a plurality of ribs on one side thereof, and a plurality ot reversible locking tumblers .having recesses in their lower sides at one side of the centers thereof adapted to register with the opening in the said locking member when in one position on said locking bolt and'out of register therewith when in reverse position and in engagement with the looking bolt when in looked fposition.

A pern'iutation padlockl comprising in combination, a easing, a bow, a remoyable Cover for said easing, a looking member, a locking bolt, a plurality of slidable looking tinnblers, a removable Cover plate in said,y

casing normally held in position the -loelring bolt, and a pair ofstuds on saidvcover plate having recesses in the sides thereofwithin which the. said locking bolt adapted to fill. j V (i. A permutation padloelr `zcomprising. combination, a easing, .a bow, a lool;ingfm'ember havin an opening therein and a plurality oi' ribs thereon, a locking bolt positioned in ne open' ig' in said locking member and-hav- :i a plurality of ribs thereon whereby` channeis are Aformed in said looking.,member.and said loelr' g bolt, a plurality of sliding locking? tumbiers in said ehzannels having means thereon vto engage the ribs in the lloekingbolt when in locked por'tion, a master tumbler, and n'ieans tending to holdsaid lmaster tumbler in locked position. permutation` padlock 'comprisingin eon'ibination, a easing7 a bow, a lookingmember han'ing` an opening therein and a plurality oit. ribs i" the. opening in saidloeking member and havino' a plurality of ribs thereon whereby, ehan- .ls are formed in said .locking memberv and d looking' bolt, a plurality of sliding lool:- insT tinnblers in said channels having` means een to engage the ribs in the `locking bolt when in locked position,l a mast'ertumbler, and a spring exerting its force on said master tumbler tending `to hold it in looked position. Signed at Chicago, Illinois, this 15th day of January,.1927.

GEORGE r. MAYER.

ereonka. looking bolt positioned in 

